5157645816 has 32 divisors (see below), whose sum is σ = 13137402960. Its totient is φ = 1686776832.

The previous prime is 5157645767. The next prime is 5157645841. The reversal of 5157645816 is 6185467515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2026105 + ... + 2028648.

Almost surely, 2^5157645816 is an apocalyptic number.

It is an amenable number.

5157645816 is an abundant number, since it is smaller than the sum of its proper divisors (7979757144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5157645816 is a wasteful number, since it uses less digits than its factorization.

5157645816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054815 (or 4054811 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 48.

The square root of 5157645816 is about 71816.7516391545. The cubic root of 5157645816 is about 1727.7616832049.

The spelling of 5157645816 in words is "five billion, one hundred fifty-seven million, six hundred forty-five thousand, eight hundred sixteen".